Chuck



Nov. 23 1926.

W. M. CUTLER CHUCK Filed March 23. 1923 2 Sheets-Sheet 2 I mwen/r?.- M @waa/1,62'

Patented New Z3, 19E-5.

PATENT OFFIQE.

YVALLACE l'i'..` CUTLER, OF VNDSOR LOCKS, CON'NEC'IIOUI"7 ASSIG-NOR TO THE E. HORTON & SON COMPANY, OF WINDSOR LOCKS," CONNECTICUT, A CORPORATION OF CON- NECTICUT.

CHUCK.

Application filed March 23, 1923.

My invention which relates to chucks and has among its objects a `superior construc-` tion for operating the jaws while the chuck is rotating, will be best understood from the following description-and accompanying drawings of one specific embodiment of my invention'selected `for illustrative purposes, while the scope of my invention will be more particularly pointed out in the appended claims.

In the drawings n I? 1 shows an elevation of the face of a chuck constructed according to my invention;

I F 2 is a section on the line 2-2 of Fig. 1; and

Figs. 3 and lrespectively are sectionson the lines 3 3 and 4`4 of Fig.` 2.

In this application I do not claim broadly the control of the differential gear mechanism by a planetary mechanism7 since this is claimed in my copending application7 Serial No. 483,260. Further I do not herein claim broadly the differential gearing as herein applied to the chuck, since this is y claimed in my copending applications Serial Nos. 1-83,258 and 627,133.

Referring to the drawings and to the preferred embodiment of my invention the" chuck has a body 1 provided with radially disposed slots 3 the sides of which are formed to provide guideways for the radially movable jaws 5, the jaws on their rear ward sides being provided with teeth 7 which engage scrollteeth 9 on a scroll wheel 11. As will be understood by'those skilled in the art rotation oit' the scrollwheel will move the as desired.

For rotating the scroll wheel I provide.V differential mechanism. which when rotated relatively/to the body of the chuckin one direction is ei'lective to rotatethe scrollV wheel in one directiomand whenrotatedfin the opposite directionrelativelytothe'bodv of the chuck is eii'ec'tive" 'to rotate the scroll wheel 'inthe opposite direction.v lfflie'ftlifl? iterential mechanism when the chuckfisv ro-r tating may be operated directly for rotating the scroll ,wheel in one direction or may be` i rotated by planetary 4mechansln .for `rotatjaws to release or grip the work Serial No. 627,134f

ingthe scroll wheel in the opposite direc tion. I also provide a hand wheel for operating the differential mechanism in opposite directions.

Providing the diiferential mechanism I have shown the scroll wheel formed with an annular fla-nge 13 which flange has internal gear teeth 15. The scroll wheel is mounted in an annular recess 17 formed on the rearward side or' the body and is retained in this recess by means of a ring 19 the ring having the internal gear teeth 21. With the gear teeth and 21 mesh differential pinions 23 which are mounted on the pins 25 carried by the internal annular flange 27 ci" the hand wheel or ring 29 which is mounted for rotation on the anti-friction bearing 30. The gear teeth 15 have slightly greater pitch diameter than the gear teeth 21, and consequently when the hand wheel is rotated relatively to the body of the chuck the scroll wheel will likewise be rotated relatively to the body of the chuck and at a speed relative to the hand wheel dependent upon the difference in pitch diameters of the gear teeth 15 and 21. l

The rearward side of the body of the chuck is exteriorly reduced in diameter at 31 to provide a shoulder 33. Fitting the reduced diameter portion 31 and abutting the shoulder isa sleeve 35 which is secured to the body by one or more screws 36. The sleeve extends rearwardly and surrounds the part 37 to which the chuck is attached, this part 3'? being carried for example by the lathe spindle and being secured to the body of the chuck by means of the bolts 39.

, 45. At the rearward end of the sleeve 35 I A, mountfor rotation on the anti-friction bean lingea ring 4T which is provided with eX- 'ternal gear teeth 49 meshing with planetary pinionsQand' on the hand wheel 29 I provide internal gear teeth 51 which also mesh with the planetary pinions. By this construction .i it will be noted that if the chuck is rotating and the ring )4.7 is caused to stand station.- aryon tofrotate at` a slower' speed than the chuck the planetary pinions will cause the hand Wheel 29 to rotate at a speed greater than that ot the chuck, and consequently by causing this relative motion between the chuck and the ring 47 l am able to rotate the scroll Wheel While the ohuoh is rotating in the opposite direction to that in which it rotates when the hand Wheel is caused to stand stationary or rotate at a speed less than that ot the chuck.

It will also be understood that by rotatingthe ring; 29 by hand in opposite directions when the ohue is stationary the scroll Wheel may be rotated in an opposite direction ii desired. Conveniently the hand wheel is provided with a grip portion 53 in the 'form oi an internal tlangevseoured to the rearward end ot the hand Wheel.

For causing the ring,` 47 and hand Wheel Q9 to come to rest when the chuck is rotated or to cause them to rotate at a less speed than the eliuelr l may provide any suitable brake meehani in. Herein I have shoivn a ring 55 positioned in the annular space betiveen the ring 47 and the hand Wheel, the ring` being split as indicated at '57 in Fig. 3. One end ot the ring adjacent the split 5T carries a pin 59, While the opposite end of the ring carries a bracket Gl one end oi which as clearly shoivn by `Figs. 2 and 3 carries a pin G3. The pins 59 and G3 pivotaliy engage the hand lever 65, the lever being pivotally supported at 67 to a iiXed part ot the lathe. lt Will be noticed that it the lever is moved counteroloeliivise viewed in Fig'. 2% the ring Will be eX- panded, While it he lever is moved Clockivise the ring will be Contracted. `When eirpanded the ring engages the internal annular surface ot the hand ivheel 29, While when the ring is contracted it engages the external annular surface ot the ring 4T.

ln order to exert a iioiveritul torce for Closing the laws on the Work or releasingl them therefrom l provide lostmotion in the train of gearing' operating; the scroll Wheel.

Referring particularly to 2 and 4 the.

ring;1 19 hereinbeiore mentioned is secured to the'body oi? the chuck by means of bolts which pass tirough notches il on. the exterior ot the ring. lily this Construction l. ani enabled by taking up the lost motion suddenly to exert a hammer blow on the iaivs. y

Although lk have described tor purposes ott illustrI one speeitie embodiment ot my invention it to be understood that Within the scope ot my inreution Wide deviationsV may oe made therefrom without de` parting; from the spirit oil' my invention. Claims: n l. A Chuck Comprising, in combination, a body, jaws, a ianoperating part mounted for rotation relatively to said body, a "pair ot rings rotatable relatively to said body, a

y relatively to reoaeea detachable bearing member for said rings non-rotatably Carried by said body, a planetary pinion having a pivot rotating` with said body and meshing with said rings,` one of said rings' carrying a diilerential pinion meshing with said body and said jaw operating part, and an eXpansible and Contraotible ring; rotatable relatively to said body and positioned between the rings ot said pair, and means for expanding' and eontraeting said ring for causing it selectively to engage either ring ot said pair.

2. A chuck comprising, in combination, a body, jaws, a jaw operating' part mounted tor rotation relatively to said body, difterential means torrotating said aw operating` part. said means including,l a ring rotatable said body and having internal gear teeth, a pinion having a pivot rotating' vvith said body, said pinion meshing With said internal gear teeth, a second ring rotatable relatively to said body and having external gear teeth meshing with said pinion, a separately formed member non-rotatably carried by said body and having bearings for said rings, and an eXpansible and cont-raetible ring between the tivo rings rst mentioned, and means :tor expanding and Contracting said ring for causing it seleotively to engage the tvvo other rings.

3. il Chuck comprisingin combination, a body, jaws, a jaiv operatingpart mounted for rotation relatively to said body, a part to which said body is secured, said body having;` a sleeve portion surrounding` said last mentioned part, a ring` rotatable relatively to said body and surrounding said sleeve portion, said ring having an internal flange mounted upon said sleeve portion and carrying a differential pinion meshing with said body and said jan7 operating part, a second rinp,` mounted upon said sleeve portion tor rotation, each ot said rings carrying` a 4gear., a pinion carried by said Vsleeve portion and meshing' With the gears carried by rings, and means lor selectively gripping' either oit said rings to prevent rotation thereof with said body.

4.,A chuck Comprising, in combination, a body, jaws, a jaw operating part mounted for rotation relatively to said body, a part to which said body is secured, a pair oi oonoentrio rings surrounding said part, one of which rings is non-rotatively carried by said body and the other rotatively carried, diiterential means for rotating said jaw operatingl part operated by the last mentioned ot said rings, and planetary means oarriedby the other of said rings :tor @aus ing rotation of said last mentioned ring relatively to said body.

5. A chuck having in combination, a body, jaws, a aw operating part mounted for ro tation relatively to said body, means tor aetuating said jaw operatingpartinoluding one fstationary relatively tot the 'other 'wlieii tliejaivs are moving relatively to'said body f a common pinion meshing with bot'li gears, one ot said gears liavinga lost "niotion connection withtliepart opposingits` rotation, a part rotatable relatively to said body onivhicli saidlpinion is `mounted, and means including brake mechanism controlled by the operator :tor rotating said last mentioned part either faster or slower than said body when said chuck is in rotation.

(5. A chuck having in combination, a body, jaws, a jaw operating part mounted for rotation relatively to said body, means for actuating said jaw operating part including` differential gearing having a pair of gears one stationary relatively to the other when the jaws are moving relatively to said body and a common pinion meshing with both gears, one of said gears having a lost motion connection with the part opposing' its rotation, a part rotatable relatively to said body on which said pinion is niounted, means including planetary gearing controlled by the operator for rotating said part raster than said chuck when said chuck is in rotation.

7. A chuck comprising, in combination, a body, jaws, a jaw operating part mounted tor rotation relatively to said body, difterential means i'or rotating' said part, said moans including a pinion mounted for revolution relatively to said body and meshing with tivo annular series of gear teeth respectively carried by said body and jaw operating part, means permitting a limited rotative movement oiE one oit' said annular series ot gear teeth relatively to the part carrying it, and planetary means 'for revolvingsaid pinion faster than said chuck when said chuck is rotating.

S. A chuck comprising, in combination, abody, jaws, a jaw operating part, ditlerential gearing ior operating said jaw operating part., said differential gearing comprising a gear having a lost motion connection to the part opposing its rotation, and planetary means actuated by rotation otl said chuck for actuating said dilfei'ential gearing' for moving said jaws.

9, A chuclr comprising, in Combination, a body, jaws, a. jaw operating part, differential gearing for operating said jaw operating part, said differential gearing comprising a gear having a lost motion connection to the part opposing its rotation, and bralre controlled planetary means actuated by rotation ot said cliucl; t'or actuating said ditferential gearing for moving said jaws.

10. A chuck comprising, in combination, a body, jaws, a jaw operating part, differ-v ential gearing for operating said jaw operating part, said differential gearing comprising a gearfhavinga lost motion conne?- jaws in one direction, and other means t'or `actuating said differential gearing 'tor moving said jaws inthe opposite"direction.

lLa-XchnckI having in combination, a body, jaws, a jaw operating part, a member mounted on said body tor relative rotation. thereto, reduction gearing comprising a train of gears permanently in mesh for transmitting the effort ot said member to said jaw operating part, a lost motion connection other than back lash in said train ot gea-rs ior permitting` substantial rotation ot' said member in either direction without actuating said jaws, an annular longitudinally disposed flange carried by said niember, and planetary means and brake mechanism housed by said flange for rotating said member in either of opposite directions relatively to said body.

l2. A chuck having in combination, a body, jaws, jaw operating means .including an internal gear mounted in a rearwardly opening recess in said body, a ring having internal gear teeth mounted in said 1ecess and retaining said internal gear in said re-A cess, means securing said ring to said body and permitting limited rotative motion ot said ring relatively to said body, a hand wheel closing said recess and mounted on said body tor rotation relatively to said body, a rearwardly projecting' Hangs on said hand wheel, and brake mechanism and planetary gearing housed by said flange for rotatingr said hand wheel in either oit opposite directions relatively to said body.

13. A chuck comprising, in combination, a body, jaws, a jaw operating part mounted for rotation relatively to said body, differential means for rot-ating said jaw operating part, a part to which said body is attached, said body having a sleeve surrounding said last mentioned part, a ring mounted upon said sleeve for rotation relatively thereto, and planetary means actuated by said ring` for operating said differential means.

l-t. A chuck comprising, in combination, a body, jaws, a jaw operating part mounted toi' rotation relatively to said body, dittereiitial means for rotating said jaw operating part, a part to which said body is attached, said body having a sleeve surrounding said last mentioned part, a ring mounted upon said sleeve tor rotation relatively thereto, planetary means actuated by said ringfor operating said differential means, and braking means causingl said ring to actua'te said planetary means.

15. A chuck comprising, in combination, a' body, jaws, a jaw operating part mounted for rotation relatively to said body, ditiin terental means for rotating said jaw operating part, a part to which said body is attached, said body having a sleeve surrounding said last mentioned part, a ring mounted upon said sleeve for rotation relatively thereto, planetary means actuated by said ring for operating said differential means, and brakmg means tor selectively causing said ring. to aotuate said planetary means or causing Said derential means to be 10 operated independently ot saidv rplanetary means.

In testimony whereof l have signed my name to this specification. f

WALLACE M. QUTLEl-l. 

